POOR SERVICE, LACK OF ACCOUNTABILITY

I have now being trying for going onto 7 months to get my Wi-Fi cancelled and money refunded. This has cost me R1000 per month and I have not had the service working. I have telephone calls and ref numbers were it was agreed that as they could see that there is no data being used that they would cancel the contract at no cost to me and refund the past 6 months payments. I am promised that they will call back and I am given ref numbers yet all that happens is them not replying. I cannot believe that a company can handle a client like this. My next step is going to be to contact lawyers as I want my money back. Now today I am told it will take another 7-14 days for Neotel to work out how much they will be paying me and by when. So what they told me in July, August and September is going on. What must one do to get your money?